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added HasAnyFlag and improved memory performance of HasFlag in DynamicEnum
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1 changed files with 33 additions and 5 deletions
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@ -32,6 +32,9 @@ namespace MLEM.Data {
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private static readonly Dictionary<Type, Dictionary<string, DynamicEnum>> ParseCache = new Dictionary<Type, Dictionary<string, DynamicEnum>>();
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private readonly BigInteger value;
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private Dictionary<DynamicEnum, bool> allFlagsCache;
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private Dictionary<DynamicEnum, bool> anyFlagsCache;
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private string name;
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/// <summary>
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@ -46,13 +49,38 @@ namespace MLEM.Data {
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}
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/// <summary>
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/// Returns true if this enum value has the given <see cref="DynamicEnum"/> flag on it.
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/// Returns true if this enum value has ALL of the given <see cref="DynamicEnum"/> flags on it.
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/// This operation is equivalent to <see cref="Enum.HasFlag"/>.
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/// </summary>
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/// <param name="flag">The flag to query</param>
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/// <returns>True if the flag is present, false otherwise</returns>
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public bool HasFlag(DynamicEnum flag) {
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return (GetValue(this) & GetValue(flag)) == GetValue(flag);
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/// <seealso cref="HasAnyFlag"/>
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/// <param name="flags">The flags to query</param>
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/// <returns>True if all of the flags are present, false otherwise</returns>
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public bool HasFlag(DynamicEnum flags) {
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if (this.allFlagsCache == null)
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this.allFlagsCache = new Dictionary<DynamicEnum, bool>();
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if (!this.allFlagsCache.TryGetValue(flags, out var ret)) {
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// & is very memory-intensive, so we cache the return value
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ret = (GetValue(this) & GetValue(flags)) == GetValue(flags);
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this.allFlagsCache.Add(flags, ret);
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}
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return ret;
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}
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/// <summary>
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/// Returns true if this enum value has ANY of the given <see cref="DynamicEnum"/> flags on it
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/// </summary>
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/// <seealso cref="HasFlag"/>
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/// <param name="flags">The flags to query</param>
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/// <returns>True if one of the flags is present, false otherwise</returns>
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public bool HasAnyFlag(DynamicEnum flags) {
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if (this.anyFlagsCache == null)
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this.anyFlagsCache = new Dictionary<DynamicEnum, bool>();
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if (!this.anyFlagsCache.TryGetValue(flags, out var ret)) {
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// & is very memory-intensive, so we cache the return value
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ret = (GetValue(this) & GetValue(flags)) != 0;
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this.anyFlagsCache.Add(flags, ret);
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}
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return ret;
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}
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/// <inheritdoc />
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